*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19900
19910
199221
19930
19940
199511
19961
19970
19980
19990
20000
20010
20021
20030
20040
200511
200611
20073
20082
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180
20190
20200
20211
20220
20230
20240
Total65